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(No Model.) 2 Sheets-Sheet 1. P. SOHWBIGER.

FOLDING FRAME FOR ARTISTS.

. Patented June 29,1897.

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(No Model.) 2 Sheets- -Sheet 2.

F. SCHWEIGER. FOLDING FRAME FOR ARTISTS.

No. 585,598. Patented June 29,1897.

m: NoRms PETERS w. PHOVO-LITNQ. WASHINGTON, 11c.

9 UNITED STATES PATENT OFFICE.

FRIEDRICH SGI-IWEIGER, OF MUNICH, GERMANY.

FOLDING FRAME FOR ARTISTS.

SPECIFICATION forming. part of Letters Patent No. 585,598, dated June29, 1897.

Application filed October 20, 1896. Serial No. 609,412. (No model.)Patented in England July 2, 1895, No. 12,798; in Belgium July8,18%,11'0- 116,465, and in France July 9,1895, No. 248,774:-

To all whom it may concern:

Be it known that I, FRIEDRICH SCHWEIGER, a citizen of the Empire ofGermany, residing at Munich, Bavaria, Germany, have invented certain newand useful Improvements in Folding Frames for Artists, (for which I havereceived apatent in France July 9, 1895, No. 2i8,774; in Belgium July 8,1895, No.116,4:65, and in Great Britain July 2, 1895, No.12,798;) and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention relates to a folding sketchboard for artists.

The object of this invent-ion is to produce a folding sketch-board towhich primed canvas or artists boards or paper may be secured bysuitable fastening-pins or other devices, and particularly to produce afolding sketch-board which will protect and safely accommodate a numberof sketches of double the size of the folded board or of the paintboX inwhich the board is stowed or several sketches of difierent sizes in amoist condition in such a manner that the same may be readilytransported on sketching excursions.

The invention consists of the features, details of construction, andcombination of parts which will first be described in connection withthe accompanying drawings, and then particularly pointed out in theclaims. In the drawings, Figure 1 is a front View of one form of deviceembodying my invention; Fig. 2, a partial rear view, and Fig. 3 alongitudinal section of the same. Fig. 4 is a view of the edge of theboard opened to its full extent. Figs. 5 and 6 represent a frontelevation and transverse section, respectively, of the board completelyclosed. Figs. 7 and 8 represent a front elevation and a cross section ofthe board in one partlyopened position. Figs. 9 and 10 represent similarviews of the board in another partlyopened position, while Fig. 11 showsa modified form of board in which a canvas of four times the.size of thefolded board can be accommodated. Fig. 12 is a longitudinal section ofthe board shown in Fig. 11.

Referring to the drawings, it will be seen that the folding sketch-boardconsists of a plurality of panels (in the drawings four) a b c d, whichare each provided on both short sides, as well in part on one and inpart on both long sides, with shallow strips e. The

single panels are united in such a manner,

each by a pair of joints f, that the folding board will be held togetherwhen folded during transport or when used in its small size, as in Figs.5 and 6. In this condition the folding board has two surfaces forsketches of small size. Furthermore, the folding frame can be opened insuch a manner that it will receive three sketches of twice the size ofthe folded board. For this purpose either the two outer panels a and dmay be opened out in the directions of the arrows m, Fig. 6, from theremainder of the board, whereby the entire board attains the positionshown in Figs. 7 and 8, or the panels a and h, as well as the panels 0and d, are turned in the directions of the arrows y, Fig. 6, so that thepanels of the board arrive at the positions shown in Figs. 9 and 10.

Inorder to hold the folding sketch-board in the positions indicated inFigs. 7 to 10, the free ends of the panels a and d are each providedwith a hook g and a corresponding opposite stud h, by which means thepartlyopened board is held together. There are no strips on those longsides of the panels a and b, c and d, which lie contiguous to each otherin the formation of the double-panel size of board, as shown in Figs. 7to 10.

In order to make the board applicable to a size three to four times thatof the single panel, the longitudinal strips c of the middle panels andlying in the middle of theboard are omitted on one side. Besides this,these panels are narrowed in width, so that they do not come together byabout one to two centimeters along their central edges, as shown at t'in Fig. 11, while the strips on their short sides retain their fulllengths. By this construction the result is obtained that theoutstretched paper, which in this case is folded upon itself by theclosing of the board, is neither strained nor torn when the board isclosed. In this way itis possible to extend the drawing or sketchingsurface over one or several panels. Since the painting paper or canvasstretched upon the sketching-surface of one panel cannot touch the paperupon the opposite sketching-surface of another panel in the foldedcondition of the folding sketchboard, it follows that the sketches areprotected when in a moist condition without fear of smearing the same.

It is obvious that the number of panels in the present apparatus may bevaried according to desire.

The simple and solid construction of the folding board renders possiblethe production of the same with its many advantages over thosepreviously known at a cheap cost, and at the same time the board can beaccommodated easily in the existing paint boxes or cases and requires atthe most only a slight raising of the lid of the same. The manipulationand arrangement of the folding board to form the different sizes issimple and quickly performed. At the same time the board is not only asafe and stable support during use when opened, but also a sureprotection of the moist sketches during transportation, Whilesufficiently steady for use in painting.

In order to hold the opened board in position, I employ the hooks g andstuds h on the short sides or the hooks 70 upon the strips e exactlyopposite the hinges f. These latter hooks are held by studs Z, and whennot in use are turned back on the said straps 6.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. A folding sketch-board, comprising a plurality of panels havingsketching-s11 rfaces and hinged together, said panels being provided atthe margins with strips extending outward from the sketching-surfaces,substantially as set forth. Y

2. A folding sketch-board comprising a plurality of panels havingsketching-surfaces and hinged together, some of said panels havingstrips around their entire margins while others have such strips onparts only of their margins, whereby the board can receive various sizesof sketching-paper or the like said strips extending outward from thesketchingsurfaces, substantially as set forth.

3. A folding sketch-board comprising four panels hinged together, saidpanels having strips so arranged as to form two double-sizesketching-surfaces on one side of the board and two single and onedouble size sketchingsnrface on the other side of the board,substantially as set forth.

4. A folding sketch-board comprising a plurality of panels, and hingedconnections for said panels, the two middle panels being so arranged asto leave a central opening, substantially as set forth.

5. A folding sketch-board comprising a plurality of panels,havin gsketching-surfaces and strips extending outward from said surfaces,hinged connections for said panels, and means for holding said panels intheir opened or closed positions, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

FRIEDRICH SOHWEIGER.

Witnesses:

EMIL HENZEL, A. M. CUISUOHUNG.

